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Sunstrand 15 U


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#1 Jake OFFLINE  

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Posted December 13, 2016 - 10:51 AM

I've got a John Deere 312 rear axle with a Sundstrand 15 u can you make this run the same speed in reverse as it does forward this is for a project not in the tractor?

#2 EricFromPa ONLINE  

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Posted December 13, 2016 - 04:06 PM

If it's anything like the Hydrogear in an older Ford 120 it should move just as fast in reverse as it does forward.The older Jacobson built Ford 120 had a simple leaver connected directly to the valve on the pump.Most GTs reverse speed is limited by the travel of the linkages and most of them are fully adjustable or have bump Stops built into the linkage.

 

Does the 312 have an engine in it? You could take the fenders off and disconnect the linkage at the pump,jack it up and start it up and see if it is as fast.I'm thinking it will be the same speed in both directions with the linkage disconnected But I have been wrong before. "Nothing to it,but to do it" as my uncle tells me all the time lol.


Edited by EricFromPa, December 13, 2016 - 04:07 PM.

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#3 Jake OFFLINE  

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Posted December 13, 2016 - 04:10 PM

All I got is the rear and hydro
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#4 KennyP OFFLINE  

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Posted December 13, 2016 - 04:15 PM

I have one of those from a 317 here. Got the frame and front axle along with it. But that's all.



#5 Jake OFFLINE  

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Posted December 13, 2016 - 04:39 PM

I am wanting to make an articulating tractor using two of these rear axles. The axle I used in the front I would like to turn around so it faces the rear one. Then put a motor in front of the front axle which would drive straight through with the driveshaft or the rear axle. I know I need to change the input shaft rotation but will probably have to change the output to the wheel as well. Well I need to tear the pump apart and flip over the swashplate? Or do I spend my spare time this winter in front of TV ha ha

#6 KennyP OFFLINE  

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Posted December 13, 2016 - 05:02 PM

There are several manuals loaded for these units. 






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